I'm using Chrome, and the scroll rate is like 3 lines, and it's painfully slow. My finger gets tired really quickly on long pages. System → Preferences → Mouse lacks any scroll wheel configuration options.
I wanted to do this too, and I figure I most often want to do it in a web browser (where else do you really mouse-wheel scroll a great deal?)
For Google Chrome, add
I found 150 to be a good scroll amount but you could even make it higher for extreme scrolling.
For Firefox, do this:
① In the url field, type about:config.
② Scroll down to “mousewheel.withnokey.sysnumlines”. Double-click the line to set the value to “false”.
③ Double-click the line “mousewheel.withnokey.numlines”, and set it to a number you like.
The fix for me for this (I had it for months) was pretty surreal and like most folks I didn't believe it until I did it:
Some MS mice have a scrollwheel bug.
Also, I noticed that if you have the dongle plugged in to the computer and the mouse has an on-off mechanism then you can just turn the mouse off and back on. That resets the data link between the mouse and dongle.
In addition there is a Wiki on how to configure input devices that gives you ideas on what is possible at present:
Use xinput to show setting of your input devices:
Only after you know how your mouse is set up you are able to change these setting using
For people using Unity, you can find your lens shortcut in:
This was also annoying me.
This following is one option quoted verbatim from a comment here
place the following in
(replace 2 by the number you want to multiply scrolling by)
Update: I found that the following option actually disabled Ctrl+Scroll to zoom, which I quite like.
Please note unfortunately --scroll-pixels is deprecated and removed from Chrome and Chromium. This flag has not effect on scroll speed.
More details here: https://code.google.com/p/chromium/issues/detail?id=154776